Optional completion block for dismissal?

I need to know when the bulletinManager has completed dismissal of the bulletin, however, there doesn't seem to be a way to do this. Could someone add it in so we can have:

bulletinManager.dismissBulletin(animated: true) {
   // completion block
}

Thanks!

Can we please have this? @yusuftor how did you make it work? Is there a workaround?